<template>
  <div>
    <button @click='salary(3000)'>发工资啦，我的工资是3000</button><br/><br/>
        <button @click='salary(-2800)'>给喜欢的女主播刷了火箭-2800</button><br/><br/>
        <button @click='salary(10000)'>送外卖赚了10000</button><br/><br/>
        <button @click='salary(-18000)'>给暗恋的女生买了爱马仕-18000</button><br/><br/>
        <button @click='salary(8000)'>晚上去做代驾赚了8000</button><br/><br/>
        <button @click='salary(-100)'>买泡面100</button><br/><br/>
        <button @click='salary(-50)'>买挂逼水50</button><br/><br/>
            
        <p>我这个月还有{{num}}元</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      num:0
    }
  },

  methods: {
    salary(a){
      this.num+=a
    }
  },
}
</script>

<style scoped></style>
